STUDY OF OKINAWA TROUGH SEDIMENTATION RATES AND PALEOENVIRONMENT BASED ON URANIUM SERIES ISOTOPE
文献类型：CNKI期刊论文
| 作者 | 李凤业,史玉兰 |
| 发表日期 | 1996-11-15 |
| 出处 | Chinese Journal of Oceanology and Limnology
 |
| 关键词 | uranium series isotope Okinawa Trough sedimentation rates |
| 英文摘要 | <正> Spectrometry of ~(238)U, ~(234)U, ~(230)Th and, ~(232)Th in three Okinawa Trough cores showed that, based on the~(230)Th/~(232)Th activity ratio, the sedimentation rates were about 2.5 cm/ka, 2.8 cm/ka and 8.5 cm/ka respectivelyduring the Holocene and about 20.1 cm/ka, 12.29 cm/ka, 8.8 cm/ka and 12.6 cm/ka respectively during theWurm glacial. To examine the past global climatic and oceanographic changes, the stable oxygen isotopesδ~(18)O and CaCO_3 were measured. The Th content and Th/U ratio showed that variations of terrigenous materialinput from the continental shelf were associated with glacial and interglacial changes and sea level |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | Contribution No. 2911 from Institute of Oceanology, Chinese Academy of Sciences. This research was supported by the National Natural Science Foundation of China. |
| 期 | 04页:85-89 |
| 语种 | 英文; |
| 分类号 | P736 |
| ISSN号 | 0254-4059 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/195239]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | InstituteofOceanology,chineseAcademyofSciences,Qingdao266071
,InstituteofOceanology,chineseAcademyofSciences,Qingdao266071 |
| 推荐引用方式 GB/T 7714 | 李凤业,史玉兰. STUDY OF OKINAWA TROUGH SEDIMENTATION RATES AND PALEOENVIRONMENT BASED ON URANIUM SERIES ISOTOPE. 1996. |
入库方式： OAI收割
来源：海洋研究所
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